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The US trademark DUO-SONIC was filed as Word mark on 11/22/1966 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 10/24/1967.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72259217 |
| Register number | 837580 |
| Application date | November 22, 1966 |
| Publication date | August 8, 1967 |
| Entry date | October 24, 1967 |
Trademark owner
ONE BECTON DRIVE
074171880 FRANKLIN LAKES
US
074171880 FRANKLIN LAKES
US
goods and services
10
STETHOSCOPES
ID: 1372259217